Because of course you were a fly on the wall in their home for 31 years, right? You have no idea who is “fault“ it or what went on . And of course, they are both better off. No need to put yourself through the misery of staying married to someone.
And I suppose that you were a fly on the wall in their home for 31 years?
You are very quick to blame Sarah, when there is absolutely no evidence that she’s in the wrong.